Аннотация:To determine the effectiveness of therapeutic embolization in the treatment of intractable epistaxis.Cohort.Tertiary care hospital.Consecutive referred sample of 57 patients with intractable epistaxis.Percutaneous transfemoral catheterization and angiography of the internal maxillary arteries. Embolization of the most distal branches with 0.1- to 0.9- cm3 medium-sized polyvinyl alcohol particles on the suspected side of bleeding.Outcome was successful if no further interventional treatment was required for epistaxis.Anatomical abnormalities precluded embolization in three patients. Three of the remaining 54 patients required supplementry embolization. Including these three patients, 52 (96%) of 54 patients had successful control epistaxis. The major neurologic complication rate was 6% (three of 54 patients), with no permanent deficits.Therapeutic embolization is an effective and safe technique and should be considered as the primary treatment modality in severe epistaxis.